Cairns
Australia
Long-term weather forecast
Long-term weather forecast

May weather forecast and climate
Cairns, Australia

May, the last month of the autumn, in Cairns, is another warm month, with average temperature ranging between min 20.7°C (69.3°F) and max 24.9°C (76.8°F).

Temperature

In Cairns, the average high-temperature is practically the same as in April - a still moderately hot 24.9°C (76.8°F). In Cairns, Australia, the average low-temperature is 20.7°C (69.3°F).

Humidity

In Cairns, the average relative humidity is 79%.

Rainfall

In May, the rain falls for 13.8 days. Throughout May, 27mm (1.06") of precipitation is accumulated. In Cairns, during the entire year, the rain falls for 167.3 days and collects up to 652mm (25.67") of precipitation.

Sea temperature

In May, the average sea temperature in Cairns, Australia, is 26.2°C (79.2°F).
Note: For swimming, diving, and other water activities, temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

Daylight

In May, the average length of the day is 11.3h.

Sunshine

In May, the average sunshine in Cairns, Australia, is 6h.

UV index

The average daily maximum UV index in Cairns is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from the exposure to the Sun's UV radiation for ordinary individuals.
Note: The average daily UV index of 6 in May transform into the following instructions:
Take precautions against overexposure. Protection against sun damage is needed. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.

What is the temperature in May in Cairns?

In May, in Cairns, the average high-temperature is 24.9°C (76.8°F), and the average low-temperature is 20.7°C (69.3°F).

What is the average humidity in May in Cairns?

In May, the average relative humidity in Cairns, Australia, is 79%.

How much does it rain in Cairns in May?

In Cairns, Australia, during May, the rain falls for 13.8 days and regularly aggregates up to 27mm (1.06") of precipitation.

How warm is the water in May in Cairns?

In Cairns, Australia, in May, the average water temperature is 26.2°C (79.2°F). For swimming, diving, and other water activities, temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

What is the average length of the day in May in Cairns?

In May, the average length of the day in Cairns, Australia, is 11.3h.

How many hours of sunshine does Cairns have in May?

In Cairns, the average sunshine in May is 6h.

What is the UV index reading in May in Cairns?

In May, the average daily maximum UV index in Cairns is 6. A UV Index reading of 6 to 7 represents a high hazard to health from unprotected exposure to the UV radiation.
Average temperature in May - Cairns, Australia
  • Average high temperature in May: 24.9°C

The warmest month (with the highest average high temperature) is February (29.4°C).
The month with the lowest average high temperature is July (23.2°C).

  • Average low temperature in May: 20.7°C

Months with the highest average low temperature are January and February (24.3°C).
The coldest month (with the lowest average low temperature) is August (18°C).

Average humidity in May - Cairns, Australia
  • Average humidity in May: 79%

The month with the highest relative humidity is March (81%).
Months with the lowest relative humidity are September and October (74%).

Average rainfall in May - Cairns, Australia
  • Average rainfall in May: 27mm

The wettest month (with the highest rainfall) is January (162mm).
The driest month (with the lowest rainfall) is September (9mm).

Average rainfall days in May - Cairns, Australia
  • Average rainfall days in May: 13.8 days

The month with the highest number of rainy days is January (22.4 days).
The month with the lowest number of rainy days is September (7.2 days).

Average sea temperature in May - Cairns, Australia
  • Average sea temperature in May: 26.2°C

The best month for swimming (with the highest average sea temperature) is January (29.5°C).
The coldest month (with the lowest average sea temperature) is July (23.8°C).

Average daylight in May / Average sunshine in May - Cairns, Australia
  • Average daylight in May: 11.3h

The month with the longest days is December (Average daylight: 13.1h).
The month with shortest days is June (Average daylight: 11.1h).

  • Average sunshine in May: 6h

Months with most sunshine are October and November (Average sunshine: 10.8h).
The month with least sunshine is June (Average sunshine: 5.9h).

Average UV index in May - Cairns, Australia
  • Average UV index in May: 6

Months with the highest UV index are January, February and November (UV index 7).
The month with the lowest UV index is July (UV index 5).